Browse Prior Art Database

Pluggable CB Package

IP.com Disclosure Number: IPCOM000109122D
Original Publication Date: 1992-Jul-01
Included in the Prior Art Database: 2005-Mar-23
Document File: 1 page(s) / 51K

Publishing Venue

IBM

Related People

Mullady, RK: AUTHOR

Abstract

Disclosed is a design for a pluggable circuit breaker assembly that insures the circuit breaker is in the off position when it is either plugged or unplugged.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 88% of the total text.

Pluggable CB Package

      Disclosed is a design for a pluggable circuit breaker assembly
that insures the circuit breaker is in the off position when it is
either plugged or unplugged.

      Concurrent maintenance is becoming a necessity in many areas of
new machines.  Currently there are a few manufacturers that make
pluggable circuit breakers to ease replacement in the field.  For
concurrent maintenance, the circuit breaker must be open when
plugging or unplugging.  If the circuit breaker is closed, it will
draw an arc between the mating contacts which could damage or degrade
the performance of the contacts.  Providing a circuit breaker
assembly that insures the circuit breaker is in the off position
during plugging and unplugging protects the contacts of the pluggable
circuit breaker.

      Fig. 1 shows the circuit breaker and circuit breaker
receptacle.  The circuit breaker has the trip pin extending from the
side and pin contacts at the rear.  The circuit breaker receptacle
has latches for retaining the circuit breaker and detail feature in
the side wall for tripping the circuit breaker.

      As the circuit breaker is inserted into the receptacle, Fig. 2,
the trip pin is pressed down by the detail feature in the side wall
of the receptacle, turning off the circuit breaker.  When the circuit
breaker module is fully inserted into the receptacle, Fig. 3, the top
and bottom latches hold the circuit breaker in place.

      To remove the circ...